CN1595373A - A two-channel synchronous recording and storing method and equipment for fault recording data - Google Patents
A two-channel synchronous recording and storing method and equipment for fault recording data Download PDFInfo
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Abstract
The invention relates to a fault oscilloscope data recording and storing method of the electrical power system. Its characteristics lie in the following. The fault oscilloscope system records and stores the data collected by the fault oscillometer simultaneously through the two independent channels, which are the fault oscilloscope data recording channel and the data storing channel. The invention improves the stability of the data recording and storing. At the same time, the integrity of the fault oscilloscope data is also enhanced.
Description
Technical field
The present invention relates in a kind of electric system the method and the device thereof of the record of fault recorder data and storage in the fault recording system.
Background technology
The electric system that puts into operation requires to work steadily in the long term, but its region of containing is extensive, and service condition is abominable, and the generating of containing, transmission of electricity and consumer are thousands of, and its circuit, equipment unavoidably will break down in operational process.After fault took place, the staff needed full and accurate data analyzing, judging and carry out fault handling failure cause.Therefore failure wave-recording is the important process that power system monitoring must be realized.
The essence of failure wave-recording is the system monitoring and the data acquisition system (DAS) of long-term work, its major function is when monitored system breaks down, judge institute's monitoring target according to the data variation of acquisition channel and break down, and be recorded in the state of each monitoring target such as electric current that fault monitored in a few tens of milliseconds to several seconds before and after taking place, voltage, switching value.Importance in view of failure wave-recording, Electricity Department issued " 220 ~ 500KV electric power system fault dynamically recording technical criteria " (DL/T553-94) and " requirement of 220 ~ 500KV electric power system fault dynamically recording device monitoring " (DL/T663-99), and " microcomputer type generator transformer dynamically recording device technique criterion " (DL/T***-200*, the declaration original text), every technical indicator and technical conditions have wherein been provided at fault recording system and device.
In case fault takes place in the electric system, fault recording system must real time record and storage failure recorder data, for the affirmation of fault afterwards provides the strong evidence certificate, and provides information and data for faults analysis and processing.Present stage fault recording system and device be divided into two kinds of forms, centralized and distributing, centralized record wave system system adopts front end processor, background computer structure, fault recorder data is sent to background computer from front end processor, be saved in the hard disk by the form of background computer with the fault recorder data file, the system that has also once copies this document as backup at another storage medium; The fault recording system of distributed structure is when fault takes place fault recorder data to be sent to main controlled node from each partial node, carries out storage and uniform by main controlled node.At present, the storage medium that uses in the fault recording system is hard disc of computer.Because record wave system system is in long-term unattended running status, and this single failure recorder data record and memory channel based on hard disk normally is made up of data transmitting equipment or device, transmission medium, receiving equipment or device, microprocessor, hard disk and steering logic device, in case certain equipment or component failure on this passage, data all can't be sent to last storage medium and preserve, also can't copy backup, thereby cause losing of fault recorder data, produce irremediable consequence.This based on hard disk single record and the failure wave-recording technology of memory channel realize simple, cost is low, be widely used in the existing fault wave recording device, but the reliability of fault recorder data storage is not high, the phenomenon of losing of fault recorder data often has generation.Therefore how effectively improving the fault recorder data record and the reliability of storage and the integrity of fault recorder data is the key technical problem in failure wave-recording field.
Summary of the invention
Order of the present invention is to provide the method and the device thereof of a kind of fault recorder data binary channels synchronous recording and storage, and it can effectively improve fault recorder data record and the reliability of storage and the integrity of fault recorder data.
Basic ideas are: adopt two separate and structures and principle fault recorder data record and memory channel all inequality that fault recorder data is carried out synchronous recording and storage in the fault recording system simultaneously.For this reason, the present invention proposes the method and the device thereof of a kind of fault recorder data binary channels synchronous recording and storage, this method comprises:
The method of a kind of fault recorder data binary channels synchronous recording and storage is characterized in that: this method comprises:
1) be provided with two fault recorder data record and memory channels separate and inequality in fault recording system, the storage medium of each passage all has non-volatile character;
2) fault recording system is in when operation, in the data buffer that microprocessor system is kept at the data of gathering, utilizes the data of this buffer zone to carry out real time fail and judges;
3) produce when judgement has fault, microprocessor system sends the fault recorder data of the data buffer that is kept at simultaneously to two separate fault data recorders and memory channel 1, fault data recorder and memory channel 2, carry out stores synchronized.
Specify as follows:
Microprocessor system realizes functions such as the collection to recorder data, temporary, calculating and transmission.Binary channels comprises fault data recorder and memory channel 1 and fault data recorder and memory channel 2.Fault data recorder and memory channel 1 adopts conventional storage medium: the non-volatile storage medium that hard disk, the storage medium of fault data recorder and memory channel 2 can adopt CF card or Flash ROM or ferroelectric memory and be equal to.The structure of fault data recorder and memory channel 1 is: microprocessor system, two-port RAM, industrial computer, ide interface, hard disk, during operate as normal, data stream finally is kept on the hard disk from front to back.The structure of fault data recorder and memory channel 2 is: microprocessor system, CF card (Flash ROM or ferroelectric memory) parallel bus interface, CF card (Flash ROM or ferroelectric memory), data stream finally is kept in the nonvolatile memory from front to back.Two passages while, independence, concurrent working.
This method comprises following concrete steps:
A). microprocessor system at first saves the data in the static memory (data buffer), utilize the data in the certain hour section of preserving in the static memory that monitoring parameter is carried out fault distinguishing then, judge whether to satisfy the fault initiating condition, if fault is judged to take place, preserves fault data start address, fault initiating type, start channel information, start sign;
B). the microprocessor system failure judgement starts sign, if fault takes place, then starts the task to fault data recorder and memory channel 1, fault data recorder and memory channel 2 transmission fault datas simultaneously;
C). the record and the storing process of fault data recorder and memory channel 1: microprocessor system writes two-port RAM with fault data, and communication mark is set, industrial computer is inquired about this communication mark by STD bus, and receives fault data, according to the requirement of hard disk interface protocol, hard disk is carried out tracking and write operation, the form of fault data with file recorded on the disk, and remove communication mark, wait for follow-up fault data, after the total data recording process finishes, return complement mark;
D). the record and the storing process of fault data recorder and memory channel 2: microprocessor system is directly set up new fault fileinfo record by parallel bus interface in non-volatile storage medium (CF card, FLASH ROM, ferroelectric memory), and the fault data in the static memory is kept on the preposition, after this record is finished, judged whether follow-up data, if the process of then circulate above data recording and storage is arranged, finish until the whole records of the data of this fault, and return complement mark;
E). the complement mark that microprocessor system inquiry fault data recorder and memory channel 1, fault data recorder and memory channel 2 provide, remove corresponding sign, fault initiating type, the startup channel information of starting, get back to step a).
The device of a kind of fault recorder structure multi-channel synchronous record and storage, be front end processor, background computer version, adopt digital information processing system DSP, 16 analog to digital converters, 4Mbit SRAM, 128MB Compact Flash solid-state memory and large-scale programmable logic array FPGA in the front end processor, front end processor is to the synchronized sampling of the semaphore that requires to monitor, and background computer is the PC industrial computer; Front end processor is finished data acquisition, online fault judgement and the isa bus of fault recorder data by two-port RAM and industrial computer is sent to background computer, realizes first fault recorder data record and memory channel; Simultaneously, in the digital signal processor DSP of front end processor, add Compact Flash interface control circuit and Compact Flash storage card and realize the local synchronous recording and the storage of fault recorder data, built-in ATA/IDE controller on the Compact Flash card, i.e. second fault recorder data record and memory channel.
Owing to adopted binary channels data sync record and storage means, fault recorder data is preserved at two different storage mediums with memory channel synchronously by the mutual independently fault recorder data record of two courses of work, each passage adopts the independent control structure, independent operating separately, the storage data backup each other, and have improved the reliability of fault recorder data record and the integrity of recorder data effectively.Therefore compare with storage mode with the record of memory channel with traditional single failure recorder data record, the method that the present invention proposes can effectively improve the reliability of fault recorder data record and the integrity of fault recorder data on principle.
Description of drawings
Fig. 1 is the fault recorder data binary channels record of the embodiment of the invention and the structured flowchart of storage
Fig. 2 is the realization block diagram that the fault data first passage writes down and stores in the embodiment of the invention
Fig. 3 is the realization block diagram that the fault data second channel writes down and stores in the embodiment of the invention
Fig. 4 is a microprocessor system software flow pattern in the embodiment of the invention
Concrete real mode
Fault recorder data binary channels synchronous recording and storage means that the present invention proposes, described fault recorder data record and memory channel are meant the data stream complete channels, its implication is: by microprocessor system carry out data processing, data transmission, through communication bus, the data flow path of data storage to the storage medium the most at last.Storage medium is meant that the data storage medium with non-volatile character (is a system cut-off; data still can be preserved), comprising: static memory, ferroelectric memory and other non-volatile memory medium of hard disk, Compact Flash card (CF card), FlashROM storer, band power-down protection.Therefore, the specific implementation form of this method is relevant according to the unify data flow path form that adopted in the device of concrete record wave system.
Now, provide a specific embodiment and realize recorder data binary channels record and storage, be described in detail as follows at the fault recording system of typical front end processor, background computer structure:
As shown in Figure 1, fault recording system (being the device of a kind of fault recorder structure multi-channel synchronous record and storage) is front end processor, background computer version in the present embodiment.Front end processor is finished data acquisition, online fault judgement and the isa bus of fault recorder data by two-port RAM and industrial computer is sent to background computer, realizes first fault recorder data record and memory channel; Simultaneously, at front end processor, utilize Compact Flash card (being called for short the CF card) to realize the local synchronous recording and the storage of fault recorder data, i.e. second fault recorder data record and memory channel.The background computer function is to receive the fault recorder data that front platform computer transmits, and finishes first fault recorder data record and memory channel to data, and data are carried out the analyzing and processing operation.
In the present embodiment, the core of the data acquisition module in the front end processor is high-speed dsp (digital signal processor) system, 16 analog to digital converters, 4Mbit SRAM, 128MB Compact Flash storer and large-scale programmable logic array (FPGA).By the co-ordination of above-mentioned part, front end processor can realize that sampling rate can reach 10KHz to the semaphore that requires the to monitor synchronized sampling of (comprising switching value and analog quantity), and realizes the non-volatile local storage of fault data.
Background computer is the PC industrial computer system, and dsp system links to each other by isa bus with the PC industrial computer system.Daemon software runs on the Windows operating platform, is stored in the local hard drive of background computer by industrial computer VxD technology and front end processor swap data and with it.
The present embodiment system has realized two fault recorder data record and memory channel.
Fault data recorder and memory channel 1:
As shown in Figure 2, the data flow path of fault data recorder and memory channel 1 is:
Digital signal processor DSP takes out fault data from chip static memory (SRAM), digital signal processor DSP is delivered to fault data among the dual-port chip DPRAM and is preserved then, industrial computer VxD program is taken out fault data from twoport chip RAM by the ISA interface, industrial computer carries out format conversion with fault data, and the fault data after industrial computer will be changed then stores in the hard disk of 40G capacity by the form of ide interface with file.
Wherein, the high-performance TMS320C206 that digital signal processor DSP adopts TI company to produce, the A/D sampling A is selected 16 LTC1606 for use, and FPGA selects the A42MX09 of Actel company for use, and the sram chip model is that CY7C1041, two-port RAM chip model are CY7C024.The major function of FPGA is to assist DSP to finish data sampling and to the read-write operation of SRAM and two-port RAM.
Fault data recorder and memory channel 2:
Owing to have easy loss parts in fault data recorder and the memory channel 1, as the hard disk (mechanical part that has rotation in the hard disk, failure free time is short than miscellaneous part), in long-term unattended working environment, if generation part lost efficacy and will cause the catastrophic failure data can not reliable memory.Therefore, at inner second record and the memory channel of realizing based on Compact Flash card of front end processor.As shown in Figure 3.
Wherein digital signal processor DSP, static memory, the FPGA in digital signal processor DSP, static memory, FPGA and fault data recorder and the memory channel 1 is same device, but added CF card control circuit and Compact Flash equipment.Wherein the CF card is selected the Compact Flash product of the 128MB of SANDISK.Built-in ATA/IDE controller is compared with hard disk on the CF card, and volume is little, and power consumption is little, and owing to there are not easily worn parts such as motor and magnetic head, reliability is higher.
The data flow path of fault data recorder and memory channel 2 is:
Digital signal processor DSP takes out fault data from the chip static memory, digital signal processor DSP is the pre-service of fault data before storing then, and digital signal processor DSP stores fault data into the CF card with the form of file according to the interface protocol of CF card by interface control circuit.
As from the foregoing, dsp system is the promoter of fault data recording and storage operation, in case fault confirmed, be temporarily stored in primary fault data in the static memory and will be removed and send to independently on two fault data recorders and the memory channel.Under the support of hardware system, this process is controlled by the software program of dsp system and is realized.
Program circuit as shown in Figure 4.Be described in detail as follows:
In interrupt service routine, signal data interrupts entering, digital information processing system DSP at first saves the data in the static memory, utilize the data in the certain hour section of preserving in the static memory that monitoring parameter is carried out fault distinguishing then, judge whether to satisfy the fault initiating condition, if withdraw from during "No", if fault is judged to take place during "Yes", preserve fault data start address, fault initiating type, start information such as passage, and put fault and be masked as 1.
In the DSP master routine, digital information processing system DSP failure judgement starts whether sign is 1, if enter multi-task scheduling during "No", if during "Yes" fault data recorder and memory channel 1 task with fault data recorder and memory channel 2 of putting simultaneously is masked as effectively, task executions is by digital information processing system DSP multi-task scheduling module controls.
In fault data recorder and memory channel 1 processing procedure, digital information processing system DSP checks whether the two-port RAM state is " sky ", " if sky ", then according to the fault data reference position that writes down, a part of fault data is dumped to the two-port RAM from static memory, after filling up a frame, put the two-port RAM state and be " expiring ", send request signal to industrial computer then, industrial computer with data read after, put the two-port RAM buffer zone and be " sky " sign, during this period, digital information processing system DSP checks the Status Flag of two-port RAM always, after two-port RAM is " sky ", the next frame fault data is moved into, and by industry control after machine-readable walk, the data transmission task of first fault data recorder and memory channel is finished until all fault datas.Industrial computer is finished the data processing and the store tasks of first fault data recorder and memory channel.In the processing procedure of fault data recorder and memory channel 2, digital information processing system DSP sticks into capable status checking to CF, if inerrancy of CF card and BUSY information are returned, shows and can write data to the CF card.When in case the CF card is in normal idle condition, digital information processing system DSP is the information of the new failure wave-recording file of record in the CF card at first, process with first fault data recorder and memory channel is similar then, digital information processing system DSP is according to the fault data reference position of record, fault data temporary among the SRAM is taken out 512 bytes (1 bunch is 512 bytes), and this 512 byte is written in the free cluster in the CF card of appointment, and the wait write operation is finished, after the CF card returns to idle condition, digital information processing system DSP starts the storage operation of next 512 byte fault data, circulation is stored in the CF card until all fault datas repeatedly.Fault data form with file on the CF card is stored, function such as therefore, digital information processing system DSP should finish the establishment of file in the CF card, deletes, reads, modification.
As from the foregoing, fault data is kept at (hard disk and CF card) in the different storage mediums through fault data recorder respectively with memory channel 1, fault data recorder and memory channel 2.DSP rises to digital information processing system, two fault data recorders and memory channel are from the communication port to the Data Receiving, it all is separate that Zhongdao storage medium is controlled in buffer memory and storage, and two fault data recorders and memory channel carry out synchronously to the record of each fault recorder data, the data of two records backup each other, therefore utilize two separate fault data recorders and memory channel that same fault recorder data is carried out synchronous recording and storage, improve the reliability of fault recorder data record, thereby improved the integrity of fault recorder data.
For the purpose of illustration and description, provide the description of the front of the preferred embodiment of the present invention.It is not detailed or limits the invention to the accurate form of exposure.
Claims (3)
1. the method for fault recorder data binary channels synchronous recording and storage, it is characterized in that: this method comprises:
(1) be provided with two fault recorder data record and memory channels separate and inequality in fault recording system, the storage medium of each passage all has non-volatile character;
(2) fault recording system is in when operation, in the data buffer that microprocessor system is kept at the data of gathering, utilizes the data of this buffer zone to carry out real time fail and judges;
(3) produce when judgement has fault, microprocessor system sends the fault recorder data of the data buffer that is kept at simultaneously to two separate fault data recorders and memory channel 1, fault data recorder and memory channel 2, carry out stores synchronized.
2. the method for a kind of fault recorder data binary channels synchronous recording according to claim 1 and storage, it is characterized in that: this method comprises:
Fault data recorder and memory channel 1 adopt conventional storage medium: hard disk, the non-volatile storage medium that the storage medium of fault data recorder and memory channel 2 can adopt CF card or Flash ROM or ferroelectric memory and be equal to, the structure of fault data recorder and memory channel 1 is: microprocessor system, two-port RAM, industrial computer, ide interface, hard disk, during operate as normal, data stream finally is kept on the hard disk from front to back; The structure of fault data recorder and memory channel 2 is: microprocessor system, parallel bus interface, CF card or Flash ROM or ferroelectric memory, data stream finally are kept in the nonvolatile memory from front to back;
Concrete steps are as follows:
A). microprocessor system at first saves the data in the static memory, utilize the data in the certain hour section of preserving in the static memory that monitoring parameter is carried out fault distinguishing then, judge whether to satisfy the fault initiating condition, if fault is judged to take place, preserves fault data start address, fault initiating type, start channel information, start sign;
B). the microprocessor system failure judgement starts sign, if fault takes place, then starts the task to fault data recorder and memory channel 1, fault data recorder and memory channel 2 transmission fault datas simultaneously;
C). fault data recorder and memory channel 1 record and storing process: microprocessor system writes two-port RAM with fault data, and communication mark is set, industrial computer is inquired about this communication mark by STD bus, and receives fault data, according to the requirement of hard disk interface protocol, hard disk is carried out tracking and write operation, the form of fault data with file recorded on the disk, and remove communication mark, wait for follow-up fault data, after the total data recording process finishes, return complement mark;
D). fault data recorder and memory channel 2 record and storing processs: microprocessor system directly by parallel bus interface at non-volatile storage medium: set up new fault fileinfo record in CF card or FLASH ROM or the ferroelectric memory, and the fault data in the static memory is kept on the preposition, after this record is finished, judged whether follow-up data, if the process of then circulate above data recording and storage is arranged, finish until the whole records of the data of this fault, and return complement mark;
E). the complement mark that microprocessor system inquiry fault data recorder and memory channel 1, fault data recorder and memory channel 2 provide, remove corresponding sign, fault initiating type, the startup channel information of starting, get back to step a).
3. the device of fault recorder data binary channels synchronous recording and storage, be front end processor, background computer version, adopt digital information processing system (DSP), 16 analog to digital converters, 4Mbit SRAM, 128MB Compact Flash storer and large-scale programmable logic array (FPGA) in the front end processor, background computer is the PC industrial computer; Front end processor finishes data acquisition, online fault judgement, when monitoring electric power system fault, the isa bus of fault recorder data by two-port RAM and industrial computer is sent to background computer, background computer is stored fault data on local hard drive; It is characterized in that: in the digital signal processor (DSP) of front end processor, be provided with Compact Flash interface control circuit and Compact Flash storage card, realize the local synchronous recording and the storage of fault recorder data simultaneously.
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| CN101498757B (en) * | 2009-03-06 | 2012-05-30 | 深圳市双合电气股份有限公司 | Real-time dynamic monitoring and recording equipment of power system |
| CN101750571B (en) * | 2008-12-18 | 2012-11-07 | 浙江省电力公司 | dynamic and steady state recording method for power system |
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| CN102222980B (en) * | 2011-06-15 | 2014-07-30 | 中电普瑞科技有限公司 | Transient wave-recording playback system of series capacitor compensation device or fault current limiter device |
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| CN103295617A (en) * | 2013-05-08 | 2013-09-11 | 惠州中城电子科技有限公司 | Method for rapidly solving faults of data collection equipment of electric system |
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